InvalidPathException on Windows

I get an exception when compiling my project with error prone 2.0.10. I do not get this exception with 2.0.9.

I’m guessing this issue is Windows-specific. It looks like it’s trying to make a java.nio.file.Path starting with /C:/ and blowing up because of the : character.

Here’s the error and stack trace I see when running mvn clean package (which fails because of this error):

C:\Development\projectname\projectname-util\src\main\java\com\companyname\projectname\util\math\package-info.java:8: error: An unhandled exception was thrown by the Error Prone static analysis plugin.
@CheckReturnValue
^
     Please report this at https://github.com/google/error-prone/issues/new and include the following:

     error-prone version: 2.0.10
     Stack Trace:
     java.nio.file.InvalidPathException: Illegal char <:> at index 2: /C:/Development/projectname/projectname-util/src/main/java/com/companyname/projectname/util/math/package-info.java
        at sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:182)
        at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153)
        at sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77)
        at sun.nio.fs.WindowsPath.parse(WindowsPath.java:94)
        at sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:255)
        at java.nio.file.Paths.get(Paths.java:84)
        at com.google.errorprone.bugpatterns.PackageLocation.getFilePath(PackageLocation.java:88)
        at com.google.errorprone.bugpatterns.PackageLocation.matchCompilationUnit(PackageLocation.java:69)
        at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:646)
        at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:146)
        at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:561)
        at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:53)
        at com.google.errorprone.scanner.Scanner.scan(Scanner.java:70)
        at com.google.errorprone.scanner.ErrorProneScannerTransformer.apply(ErrorProneScannerTransformer.java:45)
        at com.google.errorprone.ErrorProneAnalyzer.finished(ErrorProneAnalyzer.java:121)
        at com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:113)
        at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1303)
        at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1247)
        at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:858)
        at com.sun.tools.javac.main.Main.compile(Main.java:253)
        at com.google.errorprone.BaseErrorProneCompiler.run(BaseErrorProneCompiler.java:190)
        at com.google.errorprone.BaseErrorProneCompiler.run(BaseErrorProneCompiler.java:101)
        at com.google.errorprone.ErrorProneCompiler.run(ErrorProneCompiler.java:131)
        at com.google.errorprone.ErrorProneCompiler.compile(ErrorProneCompiler.java:73)
        at org.codehaus.plexus.compiler.javac.errorprone.JavacCompilerWithErrorProne$CompilerInvoker.compile(JavacCompilerWithErrorProne.java:219)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.plexus.compiler.javac.errorprone.JavacCompilerWithErrorProne.performCompile(JavacCompilerWithErrorProne.java:91)
        at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:825)
        at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:129)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
        at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)

[eaftan]

I just pushed Error Prone 2.0.11 to Maven. It includes the fix for this bug.

[jiri-pejchal]

It would be good to have a release with the bugfix for this issue soon. It makes error prone on windows unusable.